Asp.net generic error in GDI+ on image.save when splitting tiff image

Question

0.00/5 (No votes)

See more:

Dear all,
i use the following code in a web application (ASP.NET/C#) to split a tiff image:

C#

public void SplitTiffImage(string inputFilePath, EncoderValue format)
    {
try{
        using (FileStream fs = new FileStream(inputFilePath, FileMode.Open,  
               FileAccess.Read) )
        {
            using (Image temp_image = Image.FromStream(fs))
            {
                Guid objGuid = temp_image.FrameDimensionsList[0];
                FrameDimension objDimension = new FrameDimension(objGuid);

                //Saves every frame as a separate file.
                Encoder enc = Encoder.Compression;
                int curFrame = 0;
                for (int i = 0; i < page_number; i++)
                {
                    temp_image.SelectActiveFrame(objDimension, curFrame);
                    EncoderParameters ep = new EncoderParameters(1);
                    ep.Param[0] = new EncoderParameter(enc, (long)format);
                    ImageCodecInfo info = GetEncoderInfo("image/tiff");

                    string fileName = string.Format("{0}_{1}.tif", "some_name",
                                                i.ToString());

                    temp_image.Save(fileName, info, ep);               

                    curFrame++;

                }// for

            }// using imgage

        }// using filestream

        File.Delete(inputFilePath);
}catch(Exception x){
/*do something*/}
    }

i call it like this:

SplitTiffImage(ImageFullPath , EncoderValue.CompressionNone);

i tested the code several times. sometimes it works successfully, and sometimes it fails : it saves many frames and then it fails at

temp_image.Save(fileName, info, ep)

with a general error occured at GDI+. it happens at random frames, not a particular one.

What I have tried:

i am sure the user has permissions..
i tested the code on many tiff files. it succeeds for a file, and the next time it fails for the same file !
i commented out the File.Delete statement to make sure the original file is not touched, but results didn't change

Posted 7-Mar-18 2:15am

nina4ever

Updated 11-Mar-18 21:26pm

v5

Add a Solution

Comments

#realJSOP 7-Mar-18 8:37am

put the code into a try/catch block.

nina4ever 7-Mar-18 9:09am

it already was in a try catch block, and the exception is : generic error occured at GDI+ ... at Image.Save

2 solutions

Solution 1

general error occured at GDI+ , this error raise due image file references not closed properly and you are trying create or open same image.

there for close image references at end of function. by calling Garbage collector. disposing image object .

Posted 10-Mar-18 18:40pm

dkamble 10358990

Comments

nina4ever 11-Mar-18 6:58am

thanks but as i know, image object will automatically be disposed at the end of the using block. my image object is created with a using block. and my fileStream too

using(Image temp_image ...){}

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

nina4ever · Accepted Answer · 2018-03-11T21:27:00

to avoid GDI+ error, i used Microsoft Windows Imaging Components (WIC) instead. here is a good page with code to split and merge tiff

Speed up Tiff file processing with Microsoft Windows Imaging Components (WIC)

and here is the splitting method :

C#

public static void SPlitTiffWIC(string fileName)
{
 
    TiffBitmapEncoder newFileEncoder = null;
 
    FileInfo fi = new FileInfo(fileName);
    using (Stream documentStream = fi.OpenRead())
    {
 
        TiffBitmapDecoder originalFileDecoder = 
        new TiffBitmapDecoder(documentStream,
            BitmapCreateOptions.PreservePixelFormat,  
            BitmapCacheOption.None);
        foreach (BitmapFrame frame in originalFileDecoder.Frames)
        {
            newFileEncoder = new TiffBitmapEncoder();
            newFileEncoder.Frames.Add(frame);
            using (FileStream stream = File.Create("c:\\tiffs\\"  
                          + Guid.NewGuid().ToString() + ".tiff"))
            {
                newFileEncoder.Save(stream);
            }
 
        }
    }
}